172.71.199.51
Intelligence Briefing: IP 172.71.199.51/32
Analysis confirmed the address belongs to Cloudflare, Inc. (ASN 13335) within the 172.64.0.0/13 CIDR block. The target functioned as a CDN endpoint with no open ports or active services detected. While the aggregate risk score was low (25), the system flagged the host as "Suspicious Host." Geolocation data placed the IP in Newark, New Jersey, but RTT measurements contradicted the claimed distance, indicating a physics violation. The IP was listed on one DNS blacklist out of eight scanned lists. Neighborhood analysis revealed six threat siblings within the /24 subnet. SOC teams were advised to monitor the address due to signal contradictions and the suspicious host classification.
This summary was generated by AI and may contain inaccuracies. Verify critical details independently.
🏢 Ownership & Registration
| Organization | Cloudflare, Inc. |
| ASN | AS13335 |
| Network Name | CLOUDFLARENET |
| CIDR Block | 172.64.0.0/13 |
| RIR | ARIN |
| Country | United States |
| Abuse Contact | Available via RDAP |
🌐 DNS Intelligence
| PTR Record | No PTR |
| Forward Confirmed | No — PTR hostname does not resolve back to this IP (weak signal) |
🔐 DNS Hygiene
| Hygiene Score | 0% (None) |
| SPF | Not configured |
| DMARC | Not configured |
| FCrDNS | Not verified |
| DNSSEC | Not signed |
| CAA | Not configured |
☁️ Network Classification
| Infrastructure | Infrastructure / Datacenter |
| Service Purpose | Firewalled / No Services |
| Network Tier | Hosting — Infrastructure provider without advanced routing |
🔌 Services & Open Ports
| Port | Service | Protocol | Banner |
|---|---|---|---|
| No open ports detected | |||
| Closed Ports | 22, 25, 80, 443, 3389, 8080, 8443 (0 open / 7 scanned) | ||
| Server | — |
| HTTP Title | — |
🔐 TLS Certificate
| SANs | None |
| Valid From | — |
| Valid Until | — |
🎯 Confidence Breakdown
Per-dimension confidence scores based on source diversity and data freshness
| Dimension | Score | Sources | Observations |
|---|---|---|---|
| threat | 25% | 1 | 1 |
| routing | 25% | 1 | 1 |
| services | 25% | 1 | 1 |
| ownership | 0% | 0 | 0 |
| reputation | 0% | 0 | 0 |
| geolocation | 0% | 0 | 0 |
| Overall | 12% | 3 | 3 |
| Data Coherence | Mostly Consistent (80%) — 1 contradiction(s) |
| Attribution | Low (35%) |
| OwnershipFCrDNSGeo ConsensusGeo PlausibleIRR MatchRPKI Valid |
📅 Observation Timeline 🔄 Live
| First Seen | 2026-09-24 18:36:54 UTC |
| Last Seen | 2026-09-24 18:36:54 UTC |
| Profile Built | 2026-09-24 18:52:37 UTC |
| Data Freshness | Live |
| Signal Types | 18 |
| Total Observations | 18 |
Full dossier details are available via our API.